ChemInform Abstract: Intramolecular Cycloaddition Reactions of cis‐1,2‐Dihydrocatechol Derivatives Incorporating C3‐Tethered Diazoketones, Nitrile Oxides, and Azides: Stereocontrolled Routes to Enantiomerically Pure Spiro[5.5]undecanes and Related Systems.

Abstract

A series of enantiomerically pure 1,2‐dihydrocatechol derivatives (I), (VI), (XI), and (XIV) bearing diazoketone, nitrile oxide, or azide residues is prepared and their regio‐ and stereoselective intramolecular cycloaddition reactions are described.